Finding the Fourth Proportional to 30,896.23, 42,636.89 and 16,749.08

Step by Step Solution

1. Step 1: Write the proportion equation
   30,896.23 : 42,636.89 = 16,749.08 : x
2. Step 2: Convert to fraction form
   30,896.23/42,636.89 = 16,749.08/x
3. Step 3: Cross multiply
   30,896.23x = 42,636.89 × 16,749.08
4. Step 4: Simplify right side
   30,896.23x = 714,128,597.82
5. Step 5: Solve for x
   x = 714,128,597.82/30,896.23
6. Step 6: Final answer
   x = 23,113.78